478659 has 4 divisors (see below), whose sum is σ = 638216. Its totient is φ = 319104.

The previous prime is 478651. The next prime is 478679. The reversal of 478659 is 956874.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 478659 - 2³ = 478651 is a prime.

It is a super-2 number, since 2×478659² = 458228876562, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478659.

It is not an unprimeable number, because it can be changed into a prime (478651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79774 + ... + 79779.

It is an arithmetic number, because the mean of its divisors is an integer number (159554).

2⁴⁷⁸⁶⁵⁹ is an apocalyptic number.

478659 is a deficient number, since it is larger than the sum of its proper divisors (159557).

478659 is a wasteful number, since it uses less digits than its factorization.

478659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159556.

The product of its digits is 60480, while the sum is 39.

The square root of 478659 is about 691.8518627568. The cubic root of 478659 is about 78.2243704064.

It can be divided in two parts, 47865 and 9, that added together give a palindrome (47874).

The spelling of 478659 in words is "four hundred seventy-eight thousand, six hundred fifty-nine".